BGP
community
local-AS(联邦范围)
additive:add to the existing community //如何使用?
internet: (well-know commuity)
no-advertise:Do not advertise to any peer
no-export:No community attribute 在没有联邦就打上local-as 效果和no-export一样
community
local-AS(联邦范围)
additive:add to the existing community //如何使用?
internet: (well-know commuity)
no-advertise:Do not advertise to any peer
no-export:No community attribute 在没有联邦就打上local-as 效果和no-export一样
neighbor [ip] send-community //加上才能传递community属性 hop-by-hop
=====================================================================
TOP:
(AS600)---(AS105-[AS65104-AS65500]-AS105)--(AS700)
(AS600)---(AS105-[AS65104-AS65500]-AS105)--(AS700)
R6-AS600-)-(-AS105-[--AS65104-R4-R2-R1-R3-AS65104--]-[--AS65500-R5-AS65500-]-)-(AS700-R7
试验环境:BGP各路由互通。在6上发布了相应网段做测试
目的:community-list 的使用,和community属性的应用。
6.6.1.0网段不发出AS105
6.6.2.0网段不发出联邦AS65104
6.6.3.0能到达7.7.7.7
注意:R4上的route-map对6.6.4.0的作用
试验环境:BGP各路由互通。在6上发布了相应网段做测试
目的:community-list 的使用,和community属性的应用。
6.6.1.0网段不发出AS105
6.6.2.0网段不发出联邦AS65104
6.6.3.0能到达7.7.7.7
注意:R4上的route-map对6.6.4.0的作用
备注:IP规划 RX|fa1--- fa2|RY
fa1 ip: 10.1.xy.x fa2 ip:10.1.xy.y
fa1 ip: 10.1.xy.x fa2 ip:10.1.xy.y
R6配置
----------------------------------------------------------------
interface Loopback0
ip address 6.6.6.6 255.255.255.0
!
interface Loopback1
ip address 6.6.1.1 255.255.255.0
!
interface Loopback2
ip address 6.6.2.2 255.255.255.0
!
interface Loopback3
ip address 6.6.3.3 255.255.255.0
!
interface Loopback4
ip address 6.6.4.4 255.255.255.0
!
interface FastEthernet0/0
ip address 10.1.46.6 255.255.255.0
duplex auto
speed auto
...
!
router bgp 600
no synchronization
bgp router-id 6.6.6.6
bgp log-neighbor-changes
network 6.6.1.0 mask 255.255.255.0
network 6.6.2.0 mask 255.255.255.0
network 6.6.3.0 mask 255.255.255.0
network 6.6.4.0 mask 255.255.255.0
neighbor 10.1.46.4 remote-as 105
neighbor 10.1.46.4 send-community
neighbor 10.1.46.4 route-map ccl out
no auto-summary
!
...
!
ip prefix-list 1 seq 5 permit 6.6.1.0/24
!
ip prefix-list 2 seq 5 permit 6.6.2.0/24
!
route-map ccl permit 10
match ip address prefix-list 1
set community 39321601 no-export
!
route-map ccl permit 20
match ip address prefix-list 2
set community 39321602 local-AS
!
route-map ccl permit 30
!
...
----------------------------------------------------------------
R4配置
----------------------------------------------------------------
!
interface Loopback0
ip address 4.4.4.4 255.255.255.0
!
interface FastEthernet0/0
ip address 10.1.46.4 255.255.255.0
duplex auto
speed auto
!
...
!
router eigrp 105
network 4.4.4.0 0.0.0.255
network 10.1.24.0 0.0.0.255
no auto-summary
eigrp router-id 4.4.4.4
!
router bgp 65104
no synchronization
bgp router-id 4.4.4.4
bgp log-neighbor-changes
bgp confederation identifier 105
neighbor 2.2.2.2 remote-as 65104
neighbor 2.2.2.2 update-source Loopback0
neighbor 2.2.2.2 next-hop-self
neighbor 2.2.2.2 send-community
neighbor 2.2.2.2 route-map ccl out
neighbor 10.1.46.6 remote-as 600
no auto-summary
!
...
!
ip community-list 1 permit 39321601
ip community-list 2 permit 39321602
!
!
ip prefix-list 3 seq 5 permit 6.6.3.0/24
!
route-map ccl permit 10
match community 1
set metric 6001
!
route-map ccl permit 20
match community 2
set metric 6002
!
route-map ccl permit 30
match ip address prefix-list 3
!
----------------------------------------------------------------
interface Loopback0
ip address 6.6.6.6 255.255.255.0
!
interface Loopback1
ip address 6.6.1.1 255.255.255.0
!
interface Loopback2
ip address 6.6.2.2 255.255.255.0
!
interface Loopback3
ip address 6.6.3.3 255.255.255.0
!
interface Loopback4
ip address 6.6.4.4 255.255.255.0
!
interface FastEthernet0/0
ip address 10.1.46.6 255.255.255.0
duplex auto
speed auto
...
!
router bgp 600
no synchronization
bgp router-id 6.6.6.6
bgp log-neighbor-changes
network 6.6.1.0 mask 255.255.255.0
network 6.6.2.0 mask 255.255.255.0
network 6.6.3.0 mask 255.255.255.0
network 6.6.4.0 mask 255.255.255.0
neighbor 10.1.46.4 remote-as 105
neighbor 10.1.46.4 send-community
neighbor 10.1.46.4 route-map ccl out
no auto-summary
!
...
!
ip prefix-list 1 seq 5 permit 6.6.1.0/24
!
ip prefix-list 2 seq 5 permit 6.6.2.0/24
!
route-map ccl permit 10
match ip address prefix-list 1
set community 39321601 no-export
!
route-map ccl permit 20
match ip address prefix-list 2
set community 39321602 local-AS
!
route-map ccl permit 30
!
...
----------------------------------------------------------------
R4配置
----------------------------------------------------------------
!
interface Loopback0
ip address 4.4.4.4 255.255.255.0
!
interface FastEthernet0/0
ip address 10.1.46.4 255.255.255.0
duplex auto
speed auto
!
...
!
router eigrp 105
network 4.4.4.0 0.0.0.255
network 10.1.24.0 0.0.0.255
no auto-summary
eigrp router-id 4.4.4.4
!
router bgp 65104
no synchronization
bgp router-id 4.4.4.4
bgp log-neighbor-changes
bgp confederation identifier 105
neighbor 2.2.2.2 remote-as 65104
neighbor 2.2.2.2 update-source Loopback0
neighbor 2.2.2.2 next-hop-self
neighbor 2.2.2.2 send-community
neighbor 2.2.2.2 route-map ccl out
neighbor 10.1.46.6 remote-as 600
no auto-summary
!
...
!
ip community-list 1 permit 39321601
ip community-list 2 permit 39321602
!
!
ip prefix-list 3 seq 5 permit 6.6.3.0/24
!
route-map ccl permit 10
match community 1
set metric 6001
!
route-map ccl permit 20
match community 2
set metric 6002
!
route-map ccl permit 30
match ip address prefix-list 3
!
----------------------------------------------------------------
R2配置
----------------------------------------------------------------
interface Loopback0
ip address 2.2.2.2 255.255.255.0
!
interface Serial2/0
ip address 10.1.24.2 255.255.255.0
serial restart-delay 0
clock rate 201600
----------------------------------------------------------------
interface Loopback0
ip address 2.2.2.2 255.255.255.0
!
interface Serial2/0
ip address 10.1.24.2 255.255.255.0
serial restart-delay 0
clock rate 201600
!
interface Serial2/2
ip address 10.1.12.2 255.255.255.0
serial restart-delay 0
clock rate 201600
!
...
!
router eigrp 105
network 0.0.0.0
no auto-summary
eigrp router-id 2.2.2.2
!
router bgp 65104
no synchronization
bgp router-id 2.2.2.2
bgp log-neighbor-changes
bgp confederation identifier 105
neighbor 1.1.1.1 remote-as 65104
neighbor 1.1.1.1 update-source Loopback0
neighbor 1.1.1.1 send-community
neighbor 4.4.4.4 remote-as 65104
neighbor 4.4.4.4 update-source Loopback0
neighbor 4.4.4.4 route-reflector-client
no auto-summary
!
----------------------------------------------------------------
interface Serial2/2
ip address 10.1.12.2 255.255.255.0
serial restart-delay 0
clock rate 201600
!
...
!
router eigrp 105
network 0.0.0.0
no auto-summary
eigrp router-id 2.2.2.2
!
router bgp 65104
no synchronization
bgp router-id 2.2.2.2
bgp log-neighbor-changes
bgp confederation identifier 105
neighbor 1.1.1.1 remote-as 65104
neighbor 1.1.1.1 update-source Loopback0
neighbor 1.1.1.1 send-community
neighbor 4.4.4.4 remote-as 65104
neighbor 4.4.4.4 update-source Loopback0
neighbor 4.4.4.4 route-reflector-client
no auto-summary
!
----------------------------------------------------------------
R1配置
----------------------------------------------------------------
----------------------------------------------------------------
!
interface Loopback0
ip address 1.1.1.1 255.255.255.0
!
...
!
interface Serial2/2
ip address 10.1.12.1 255.255.255.0
serial restart-delay 0
!
interface Serial2/3
ip address 10.1.13.1 255.255.255.0
serial restart-delay 0
!
...
!
router eigrp 105
network 0.0.0.0
no auto-summary
eigrp router-id 1.1.1.1
!
router bgp 65104
no synchronization
bgp router-id 1.1.1.1
bgp log-neighbor-changes
bgp confederation identifier 105
neighbor 2.2.2.2 remote-as 65104
neighbor 2.2.2.2 route-reflector-client
neighbor 3.3.3.3 remote-as 65104
neighbor 3.3.3.3 route-reflector-client
neighbor 3.3.3.3 send-community
no auto-summary
!
----------------------------------------------------------------
interface Loopback0
ip address 1.1.1.1 255.255.255.0
!
...
!
interface Serial2/2
ip address 10.1.12.1 255.255.255.0
serial restart-delay 0
!
interface Serial2/3
ip address 10.1.13.1 255.255.255.0
serial restart-delay 0
!
...
!
router eigrp 105
network 0.0.0.0
no auto-summary
eigrp router-id 1.1.1.1
!
router bgp 65104
no synchronization
bgp router-id 1.1.1.1
bgp log-neighbor-changes
bgp confederation identifier 105
neighbor 2.2.2.2 remote-as 65104
neighbor 2.2.2.2 route-reflector-client
neighbor 3.3.3.3 remote-as 65104
neighbor 3.3.3.3 route-reflector-client
neighbor 3.3.3.3 send-community
no auto-summary
!
----------------------------------------------------------------
R3配置
----------------------------------------------------------------
!
interface Loopback0
ip address 3.3.3.3 255.255.255.0
!
...
!
interface Serial2/0
ip address 10.1.35.3 255.255.255.0
serial restart-delay 0
clock rate 201600
!
interface Serial2/3
ip address 10.1.13.3 255.255.255.0
serial restart-delay 0
clock rate 201600
!
router eigrp 105
network 0.0.0.0
no auto-summary
eigrp router-id 3.3.3.3
!
router bgp 65104
no synchronization
bgp router-id 3.3.3.3
bgp log-neighbor-changes
bgp confederation identifier 105
bgp confederation peers 65500
neighbor 1.1.1.1 remote-as 65104
neighbor 1.1.1.1 update-source Loopback0
neighbor 5.5.5.5 remote-as 65500
neighbor 5.5.5.5 ebgp-multihop 2
neighbor 5.5.5.5 update-source Loopback0
neighbor 5.5.5.5 send-community
no auto-summary
!
----------------------------------------------------------------
----------------------------------------------------------------
!
interface Loopback0
ip address 3.3.3.3 255.255.255.0
!
...
!
interface Serial2/0
ip address 10.1.35.3 255.255.255.0
serial restart-delay 0
clock rate 201600
!
interface Serial2/3
ip address 10.1.13.3 255.255.255.0
serial restart-delay 0
clock rate 201600
!
router eigrp 105
network 0.0.0.0
no auto-summary
eigrp router-id 3.3.3.3
!
router bgp 65104
no synchronization
bgp router-id 3.3.3.3
bgp log-neighbor-changes
bgp confederation identifier 105
bgp confederation peers 65500
neighbor 1.1.1.1 remote-as 65104
neighbor 1.1.1.1 update-source Loopback0
neighbor 5.5.5.5 remote-as 65500
neighbor 5.5.5.5 ebgp-multihop 2
neighbor 5.5.5.5 update-source Loopback0
neighbor 5.5.5.5 send-community
no auto-summary
!
----------------------------------------------------------------
R5配置
----------------------------------------------------------------
!
interface Loopback0
ip address 5.5.5.5 255.255.255.0
!
interface FastEthernet0/0
ip address 10.1.57.5 255.255.255.0
duplex auto
speed auto
!
interface Serial2/0
ip address 10.1.35.5 255.255.255.0
serial restart-delay 0
!
...
!
router eigrp 105
network 5.5.5.0 0.0.0.255
network 10.1.35.0 0.0.0.255
no auto-summary
eigrp router-id 5.5.5.5
!
router bgp 65500
no synchronization
bgp router-id 5.5.5.5
bgp log-neighbor-changes
bgp confederation identifier 105
bgp confederation peers 65104
neighbor 3.3.3.3 remote-as 65104
neighbor 3.3.3.3 ebgp-multihop 2
neighbor 3.3.3.3 update-source Loopback0
neighbor 3.3.3.3 next-hop-self
neighbor 10.1.57.7 remote-as 700
neighbor 10.1.57.7 send-community
no auto-summary
!
----------------------------------------------------------------
----------------------------------------------------------------
!
interface Loopback0
ip address 5.5.5.5 255.255.255.0
!
interface FastEthernet0/0
ip address 10.1.57.5 255.255.255.0
duplex auto
speed auto
!
interface Serial2/0
ip address 10.1.35.5 255.255.255.0
serial restart-delay 0
!
...
!
router eigrp 105
network 5.5.5.0 0.0.0.255
network 10.1.35.0 0.0.0.255
no auto-summary
eigrp router-id 5.5.5.5
!
router bgp 65500
no synchronization
bgp router-id 5.5.5.5
bgp log-neighbor-changes
bgp confederation identifier 105
bgp confederation peers 65104
neighbor 3.3.3.3 remote-as 65104
neighbor 3.3.3.3 ebgp-multihop 2
neighbor 3.3.3.3 update-source Loopback0
neighbor 3.3.3.3 next-hop-self
neighbor 10.1.57.7 remote-as 700
neighbor 10.1.57.7 send-community
no auto-summary
!
----------------------------------------------------------------
R7配置
----------------------------------------------------------------
!
interface Loopback0
ip address 7.7.7.7 255.255.255.0
!
interface FastEthernet0/0
ip address 10.1.57.7 255.255.255.0
duplex auto
speed auto
!
...
!
router bgp 700
no synchronization
bgp router-id 7.7.7.7
bgp log-neighbor-changes
network 7.7.7.0 mask 255.255.255.0
neighbor 10.1.57.5 remote-as 105
no auto-summary
!
----------------------------------------------------------------
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
R6上的信息
----------------------------------------------------------------
R6#show ip bg
BGP table version is 10, local router ID is 6.6.6.6
Status codes: s suppressed, d damped, h history, * valid, > best, i - internal,
r RIB-failure, S Stale
Origin codes: i - IGP, e - EGP, ? - incomplete
----------------------------------------------------------------
!
interface Loopback0
ip address 7.7.7.7 255.255.255.0
!
interface FastEthernet0/0
ip address 10.1.57.7 255.255.255.0
duplex auto
speed auto
!
...
!
router bgp 700
no synchronization
bgp router-id 7.7.7.7
bgp log-neighbor-changes
network 7.7.7.0 mask 255.255.255.0
neighbor 10.1.57.5 remote-as 105
no auto-summary
!
----------------------------------------------------------------
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
R6上的信息
----------------------------------------------------------------
R6#show ip bg
BGP table version is 10, local router ID is 6.6.6.6
Status codes: s suppressed, d damped, h history, * valid, > best, i - internal,
r RIB-failure, S Stale
Origin codes: i - IGP, e - EGP, ? - incomplete
Network Next Hop Metric LocPrf Weight Path
*> 6.6.1.0/24 0.0.0.0 0 32768 i
*> 6.6.2.0/24 0.0.0.0 0 32768 i
*> 6.6.3.0/24 0.0.0.0 0 32768 i
*> 6.6.4.0/24 0.0.0.0 0 32768 i
*> 7.7.7.0/24 10.1.46.4 0 105 700 i
*> 6.6.1.0/24 0.0.0.0 0 32768 i
*> 6.6.2.0/24 0.0.0.0 0 32768 i
*> 6.6.3.0/24 0.0.0.0 0 32768 i
*> 6.6.4.0/24 0.0.0.0 0 32768 i
*> 7.7.7.0/24 10.1.46.4 0 105 700 i
R6#show ip bg 6.6.1.0
BGP routing table entry for 6.6.1.0/24, version 2
Paths: (1 available, best #1, table Default-IP-Routing-Table)
Advertised to update-groups:
1
Local
0.0.0.0 from 0.0.0.0 (6.6.6.6)
Origin IGP, metric 0, localpref 100, weight 32768, valid, sourced, local, best
BGP routing table entry for 6.6.1.0/24, version 2
Paths: (1 available, best #1, table Default-IP-Routing-Table)
Advertised to update-groups:
1
Local
0.0.0.0 from 0.0.0.0 (6.6.6.6)
Origin IGP, metric 0, localpref 100, weight 32768, valid, sourced, local, best
R6#show ip bg 6.6.2.0
BGP routing table entry for 6.6.2.0/24, version 3
Paths: (1 available, best #1, table Default-IP-Routing-Table)
Advertised to update-groups:
1
Local
0.0.0.0 from 0.0.0.0 (6.6.6.6)
Origin IGP, metric 0, localpref 100, weight 32768, valid, sourced, local, best
----------------------------------------------------------------
BGP routing table entry for 6.6.2.0/24, version 3
Paths: (1 available, best #1, table Default-IP-Routing-Table)
Advertised to update-groups:
1
Local
0.0.0.0 from 0.0.0.0 (6.6.6.6)
Origin IGP, metric 0, localpref 100, weight 32768, valid, sourced, local, best
----------------------------------------------------------------
R4上的信息
----------------------------------------------------------------
R4#show ip bg
BGP table version is 9, local router ID is 4.4.4.4
Status codes: s suppressed, d damped, h history, * valid, > best, i - internal,
r RIB-failure, S Stale
Origin codes: i - IGP, e - EGP, ? - incomplete
----------------------------------------------------------------
R4#show ip bg
BGP table version is 9, local router ID is 4.4.4.4
Status codes: s suppressed, d damped, h history, * valid, > best, i - internal,
r RIB-failure, S Stale
Origin codes: i - IGP, e - EGP, ? - incomplete
Network Next Hop Metric LocPrf Weight Path
*> 6.6.1.0/24 10.1.46.6 0 0 600 i
*> 6.6.2.0/24 10.1.46.6 0 0 600 i
*> 6.6.3.0/24 10.1.46.6 0 0 600 i
*> 6.6.4.0/24 10.1.46.6 0 0 600 i
*>i7.7.7.0/24 5.5.5.5 0 100 0 (65500) 700 i
*> 6.6.1.0/24 10.1.46.6 0 0 600 i
*> 6.6.2.0/24 10.1.46.6 0 0 600 i
*> 6.6.3.0/24 10.1.46.6 0 0 600 i
*> 6.6.4.0/24 10.1.46.6 0 0 600 i
*>i7.7.7.0/24 5.5.5.5 0 100 0 (65500) 700 i
R4#show ip bg 6.6.1.0
BGP routing table entry for 6.6.1.0/24, version 2
Paths: (1 available, best #1, table Default-IP-Routing-Table, not advertised to EBGP peer)
Advertised to update-groups:
2
600
10.1.46.6 from 10.1.46.6 (6.6.6.6)
Origin IGP, metric 0, localpref 100, valid, external, best
Community: 39321601 no-export
BGP routing table entry for 6.6.1.0/24, version 2
Paths: (1 available, best #1, table Default-IP-Routing-Table, not advertised to EBGP peer)
Advertised to update-groups:
2
600
10.1.46.6 from 10.1.46.6 (6.6.6.6)
Origin IGP, metric 0, localpref 100, valid, external, best
Community: 39321601 no-export
R4#show ip bg 6.6.2.0
BGP routing table entry for 6.6.2.0/24, version 7
Paths: (1 available, best #1, table Default-IP-Routing-Table, not advertised outside local AS)
Advertised to update-groups:
2
600
10.1.46.6 from 10.1.46.6 (6.6.6.6)
Origin IGP, metric 0, localpref 100, valid, external, best
Community: 39321602 local-AS
----------------------------------------------------------------
BGP routing table entry for 6.6.2.0/24, version 7
Paths: (1 available, best #1, table Default-IP-Routing-Table, not advertised outside local AS)
Advertised to update-groups:
2
600
10.1.46.6 from 10.1.46.6 (6.6.6.6)
Origin IGP, metric 0, localpref 100, valid, external, best
Community: 39321602 local-AS
----------------------------------------------------------------
R2上的信息
----------------------------------------------------------------
R2#show ip bg
BGP table version is 5, local router ID is 2.2.2.2
Status codes: s suppressed, d damped, h history, * valid, > best, i - internal,
r RIB-failure, S Stale
Origin codes: i - IGP, e - EGP, ? - incomplete
R2#show ip bg
BGP table version is 5, local router ID is 2.2.2.2
Status codes: s suppressed, d damped, h history, * valid, > best, i - internal,
r RIB-failure, S Stale
Origin codes: i - IGP, e - EGP, ? - incomplete
Network Next Hop Metric LocPrf Weight Path
*>i6.6.1.0/24 4.4.4.4 6001 100 0 600 i
*>i6.6.2.0/24 4.4.4.4 6002 100 0 600 i
*>i6.6.3.0/24 4.4.4.4 0 100 0 600 i
*>i7.7.7.0/24 5.5.5.5 0 100 0 (65500) 700 i
*>i6.6.1.0/24 4.4.4.4 6001 100 0 600 i
*>i6.6.2.0/24 4.4.4.4 6002 100 0 600 i
*>i6.6.3.0/24 4.4.4.4 0 100 0 600 i
*>i7.7.7.0/24 5.5.5.5 0 100 0 (65500) 700 i
R2#show ip bg 6.6.1.0
BGP routing table entry for 6.6.1.0/24, version 2
Paths: (1 available, best #1, table Default-IP-Routing-Table, not advertised to EBGP peer)
Advertised to update-groups:
1
600, (Received from a RR-client)
4.4.4.4 (metric 2297856) from 4.4.4.4 (4.4.4.4)
Origin IGP, metric 6001, localpref 100, valid, confed-internal, best
Community: 39321601 no-export
BGP routing table entry for 6.6.1.0/24, version 2
Paths: (1 available, best #1, table Default-IP-Routing-Table, not advertised to EBGP peer)
Advertised to update-groups:
1
600, (Received from a RR-client)
4.4.4.4 (metric 2297856) from 4.4.4.4 (4.4.4.4)
Origin IGP, metric 6001, localpref 100, valid, confed-internal, best
Community: 39321601 no-export
R2#show ip bg 6.6.2.0
BGP routing table entry for 6.6.2.0/24, version 3
Paths: (1 available, best #1, table Default-IP-Routing-Table, not advertised outside local AS)
Advertised to update-groups:
1
600, (Received from a RR-client)
4.4.4.4 (metric 2297856) from 4.4.4.4 (4.4.4.4)
Origin IGP, metric 6002, localpref 100, valid, confed-internal, best
Community: 39321602 local-AS
----------------------------------------------------------------
R1上的信息
BGP routing table entry for 6.6.2.0/24, version 3
Paths: (1 available, best #1, table Default-IP-Routing-Table, not advertised outside local AS)
Advertised to update-groups:
1
600, (Received from a RR-client)
4.4.4.4 (metric 2297856) from 4.4.4.4 (4.4.4.4)
Origin IGP, metric 6002, localpref 100, valid, confed-internal, best
Community: 39321602 local-AS
----------------------------------------------------------------
R1上的信息
----------------------------------------------------------------
R1#show ip bg
BGP table version is 40, local router ID is 1.1.1.1
Status codes: s suppressed, d damped, h history, * valid, > best, i - internal,
r RIB-failure, S Stale
Origin codes: i - IGP, e - EGP, ? - incomplete
R1#show ip bg
BGP table version is 40, local router ID is 1.1.1.1
Status codes: s suppressed, d damped, h history, * valid, > best, i - internal,
r RIB-failure, S Stale
Origin codes: i - IGP, e - EGP, ? - incomplete
Network Next Hop Metric LocPrf Weight Path
*>i6.6.1.0/24 4.4.4.4 6001 100 0 600 i
*>i6.6.2.0/24 4.4.4.4 6002 100 0 600 i
*>i6.6.3.0/24 4.4.4.4 0 100 0 600 i
*>i7.7.7.0/24 5.5.5.5 0 100 0 (65500) 700 i
*>i6.6.1.0/24 4.4.4.4 6001 100 0 600 i
*>i6.6.2.0/24 4.4.4.4 6002 100 0 600 i
*>i6.6.3.0/24 4.4.4.4 0 100 0 600 i
*>i7.7.7.0/24 5.5.5.5 0 100 0 (65500) 700 i
R1#show ip bg 6.6.1.0
BGP routing table entry for 6.6.1.0/24, version 38
Paths: (1 available, best #1, table Default-IP-Routing-Table, not advertised to EBGP peer)
Advertised to update-groups:
1
600, (Received from a RR-client)
4.4.4.4 (metric 2809856) from 2.2.2.2 (2.2.2.2)
Origin IGP, metric 6001, localpref 100, valid, confed-internal, best
Community: 39321601 no-export
Originator: 4.4.4.4, Cluster list: 2.2.2.2
BGP routing table entry for 6.6.1.0/24, version 38
Paths: (1 available, best #1, table Default-IP-Routing-Table, not advertised to EBGP peer)
Advertised to update-groups:
1
600, (Received from a RR-client)
4.4.4.4 (metric 2809856) from 2.2.2.2 (2.2.2.2)
Origin IGP, metric 6001, localpref 100, valid, confed-internal, best
Community: 39321601 no-export
Originator: 4.4.4.4, Cluster list: 2.2.2.2
R1#show ip bg 6.6.2.0
BGP routing table entry for 6.6.2.0/24, version 39
Paths: (1 available, best #1, table Default-IP-Routing-Table, not advertised outside local AS)
Advertised to update-groups:
1
600, (Received from a RR-client)
4.4.4.4 (metric 2809856) from 2.2.2.2 (2.2.2.2)
Origin IGP, metric 6002, localpref 100, valid, confed-internal, best
Community: 39321602 local-AS
Originator: 4.4.4.4, Cluster list: 2.2.2.2
BGP routing table entry for 6.6.2.0/24, version 39
Paths: (1 available, best #1, table Default-IP-Routing-Table, not advertised outside local AS)
Advertised to update-groups:
1
600, (Received from a RR-client)
4.4.4.4 (metric 2809856) from 2.2.2.2 (2.2.2.2)
Origin IGP, metric 6002, localpref 100, valid, confed-internal, best
Community: 39321602 local-AS
Originator: 4.4.4.4, Cluster list: 2.2.2.2
R1#show ip bg 6.6.3.0
BGP routing table entry for 6.6.3.0/24, version 40
Paths: (1 available, best #1, table Default-IP-Routing-Table)
Advertised to update-groups:
1
600, (Received from a RR-client)
4.4.4.4 (metric 2809856) from 2.2.2.2 (2.2.2.2)
Origin IGP, metric 0, localpref 100, valid, confed-internal, best
Originator: 4.4.4.4, Cluster list: 2.2.2.2
----------------------------------------------------------------
R3上的信息
BGP routing table entry for 6.6.3.0/24, version 40
Paths: (1 available, best #1, table Default-IP-Routing-Table)
Advertised to update-groups:
1
600, (Received from a RR-client)
4.4.4.4 (metric 2809856) from 2.2.2.2 (2.2.2.2)
Origin IGP, metric 0, localpref 100, valid, confed-internal, best
Originator: 4.4.4.4, Cluster list: 2.2.2.2
----------------------------------------------------------------
R3上的信息
----------------------------------------------------------------
R3#show ip bg
BGP table version is 28, local router ID is 3.3.3.3
Status codes: s suppressed, d damped, h history, * valid, > best, i - internal,
r RIB-failure, S Stale
Origin codes: i - IGP, e - EGP, ? - incomplete
R3#show ip bg
BGP table version is 28, local router ID is 3.3.3.3
Status codes: s suppressed, d damped, h history, * valid, > best, i - internal,
r RIB-failure, S Stale
Origin codes: i - IGP, e - EGP, ? - incomplete
Network Next Hop Metric LocPrf Weight Path
*>i6.6.1.0/24 4.4.4.4 6001 100 0 600 i
*>i6.6.2.0/24 4.4.4.4 6002 100 0 600 i
*>i6.6.3.0/24 4.4.4.4 0 100 0 600 i
*> 7.7.7.0/24 5.5.5.5 0 100 0 (65500) 700 i
*>i6.6.1.0/24 4.4.4.4 6001 100 0 600 i
*>i6.6.2.0/24 4.4.4.4 6002 100 0 600 i
*>i6.6.3.0/24 4.4.4.4 0 100 0 600 i
*> 7.7.7.0/24 5.5.5.5 0 100 0 (65500) 700 i
R3#show ip bg 6.6.1.0
BGP routing table entry for 6.6.1.0/24, version 26
Paths: (1 available, best #1, table Default-IP-Routing-Table, not advertised to EBGP peer)
Advertised to update-groups:
2
600
4.4.4.4 (metric 3321856) from 1.1.1.1 (1.1.1.1)
Origin IGP, metric 6001, localpref 100, valid, confed-internal, best
Community: 39321601 no-export
Originator: 4.4.4.4, Cluster list: 1.1.1.1, 2.2.2.2
BGP routing table entry for 6.6.1.0/24, version 26
Paths: (1 available, best #1, table Default-IP-Routing-Table, not advertised to EBGP peer)
Advertised to update-groups:
2
600
4.4.4.4 (metric 3321856) from 1.1.1.1 (1.1.1.1)
Origin IGP, metric 6001, localpref 100, valid, confed-internal, best
Community: 39321601 no-export
Originator: 4.4.4.4, Cluster list: 1.1.1.1, 2.2.2.2
R3#show ip bg 6.6.2.0
BGP routing table entry for 6.6.2.0/24, version 27
Paths: (1 available, best #1, table Default-IP-Routing-Table, not advertised outside local AS)
Not advertised to any peer
600
4.4.4.4 (metric 3321856) from 1.1.1.1 (1.1.1.1)
Origin IGP, metric 6002, localpref 100, valid, confed-internal, best
Community: 39321602 local-AS
Originator: 4.4.4.4, Cluster list: 1.1.1.1, 2.2.2.2
BGP routing table entry for 6.6.2.0/24, version 27
Paths: (1 available, best #1, table Default-IP-Routing-Table, not advertised outside local AS)
Not advertised to any peer
600
4.4.4.4 (metric 3321856) from 1.1.1.1 (1.1.1.1)
Origin IGP, metric 6002, localpref 100, valid, confed-internal, best
Community: 39321602 local-AS
Originator: 4.4.4.4, Cluster list: 1.1.1.1, 2.2.2.2
R3#show ip bg 6.6.3.0
BGP routing table entry for 6.6.3.0/24, version 28
Paths: (1 available, best #1, table Default-IP-Routing-Table)
Advertised to update-groups:
2
600
4.4.4.4 (metric 3321856) from 1.1.1.1 (1.1.1.1)
Origin IGP, metric 0, localpref 100, valid, confed-internal, best
Originator: 4.4.4.4, Cluster list: 1.1.1.1, 2.2.2.2
----------------------------------------------------------------
R5上的信息
BGP routing table entry for 6.6.3.0/24, version 28
Paths: (1 available, best #1, table Default-IP-Routing-Table)
Advertised to update-groups:
2
600
4.4.4.4 (metric 3321856) from 1.1.1.1 (1.1.1.1)
Origin IGP, metric 0, localpref 100, valid, confed-internal, best
Originator: 4.4.4.4, Cluster list: 1.1.1.1, 2.2.2.2
----------------------------------------------------------------
R5上的信息
----------------------------------------------------------------
R5#show ip bg
BGP table version is 26, local router ID is 5.5.5.5
Status codes: s suppressed, d damped, h history, * valid, > best, i - internal,
r RIB-failure, S Stale
Origin codes: i - IGP, e - EGP, ? - incomplete
R5#show ip bg
BGP table version is 26, local router ID is 5.5.5.5
Status codes: s suppressed, d damped, h history, * valid, > best, i - internal,
r RIB-failure, S Stale
Origin codes: i - IGP, e - EGP, ? - incomplete
Network Next Hop Metric LocPrf Weight Path
*> 6.6.1.0/24 4.4.4.4 6001 100 0 (65104) 600 i
*> 6.6.3.0/24 4.4.4.4 0 100 0 (65104) 600 i
*> 7.7.7.0/24 10.1.57.7 0 0 700 i
*> 6.6.1.0/24 4.4.4.4 6001 100 0 (65104) 600 i
*> 6.6.3.0/24 4.4.4.4 0 100 0 (65104) 600 i
*> 7.7.7.0/24 10.1.57.7 0 0 700 i
R5#show ip bg 6.6.1.0
BGP routing table entry for 6.6.1.0/24, version 24
Paths: (1 available, best #1, table Default-IP-Routing-Table, not advertised to EBGP peer)
Not advertised to any peer
(65104) 600
4.4.4.4 (metric 3833856) from 3.3.3.3 (3.3.3.3)
Origin IGP, metric 6001, localpref 100, valid, confed-external, best
Community: 39321601 no-export
----------------------------------------------------------------
R7上的信息
BGP routing table entry for 6.6.1.0/24, version 24
Paths: (1 available, best #1, table Default-IP-Routing-Table, not advertised to EBGP peer)
Not advertised to any peer
(65104) 600
4.4.4.4 (metric 3833856) from 3.3.3.3 (3.3.3.3)
Origin IGP, metric 6001, localpref 100, valid, confed-external, best
Community: 39321601 no-export
----------------------------------------------------------------
R7上的信息
----------------------------------------------------------------
R7#show ip bg
BGP table version is 25, local router ID is 7.7.7.7
Status codes: s suppressed, d damped, h history, * valid, > best, i - internal,
r RIB-failure, S Stale
Origin codes: i - IGP, e - EGP, ? - incomplete
R7#show ip bg
BGP table version is 25, local router ID is 7.7.7.7
Status codes: s suppressed, d damped, h history, * valid, > best, i - internal,
r RIB-failure, S Stale
Origin codes: i - IGP, e - EGP, ? - incomplete
Network Next Hop Metric LocPrf Weight Path
*> 6.6.3.0/24 10.1.57.5 0 105 600 i
*> 7.7.7.0/24 0.0.0.0 0 32768 i
*> 6.6.3.0/24 10.1.57.5 0 105 600 i
*> 7.7.7.0/24 0.0.0.0 0 32768 i
R7#show ip bg 6.6.3.0
BGP routing table entry for 6.6.3.0/24, version 25
Paths: (1 available, best #1, table Default-IP-Routing-Table)
Not advertised to any peer
105 600
10.1.57.5 from 10.1.57.5 (5.5.5.5)
Origin IGP, localpref 100, valid, external, best
----------------------------------------------------------------
=====================================================================
BGP routing table entry for 6.6.3.0/24, version 25
Paths: (1 available, best #1, table Default-IP-Routing-Table)
Not advertised to any peer
105 600
10.1.57.5 from 10.1.57.5 (5.5.5.5)
Origin IGP, localpref 100, valid, external, best
----------------------------------------------------------------
=====================================================================
Well-known attributes
1:Well-known mandatory : AS-path,next-hop
2:Well-known discretionary:
1:Well-known mandatory : AS-path,next-hop
2:Well-known discretionary:
Optional attributes
1:Optional transitive
2:Optional nontransitive
1:Optional transitive
2:Optional nontransitive